JPS63224420A - Portable call bell - Google Patents

Abstract

PURPOSE:To enable to respond by an owner with an incoming telephone set and to make the re-dialing by both a caller and a callee unnecessary, by receiving a call signal emitted with a wave of weak power from a signal generation/ transmission means provided on a telephone set at a place separated though nearby, ringing a bell, and informing it to the owner. CONSTITUTION:When the telephone set 20 receives the call signal from a telephone line 10, an incorporated bell is rung, and also, a call signal detecting means 21 detects and confirms the call signal. By confirming the reception of the call signal, the signal generation/transmission means 22 oscillates a prescribed frequency, and forms the transmission wave of the call signal, and transmits a formed wave from an antenna 23. The transmission wave is a weak one from which no radio interference is generated, and it is not received by a portable call bell 30 when separated far away. When the portable call bell 30 receives a signal wave by a signal reception means 32 via an antenna 31 and identifies the call signal, a bell is rung in an audible tone from a loud speaker 34 by driving a bell ringing means 33, and the owner of the portable call bell 30 stops the ringing of the bell manually, and responds with the telephone set 20 in which the bell rings.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a portable paging device which is called by radio and which rings a built-in paging bell.

[Conventional technology]

A conventional portable paging device receives and identifies a plurality of frequencies as a paging signal, each corresponding to a unique and predetermined subscriber number, and rings a paging bell when it identifies its own subscriber number. In other words, a call to a mobile calling card can only be made by dialing the respective subscriber number. Accordingly, conventional portable paging calls call back to a predetermined caller using a predetermined dialing operation from a nearby telephone to answer and interact.

[Problem that the invention seeks to solve]

As mentioned above, conventional mobile paging devices have individual subscriber numbers and must be registered. Since a dial operation is required to call the caller, if the owner of a stationary phone that is fixed inside the car frequently leaves the car, the stationary phone will be called after being called using the mobile phone in his possession. It takes time and effort to make a call from a telephone and dial the number. Furthermore, in this case, the problem of assigning individual subscriber numbers, such as requiring duplicate numbers, is inevitable, which is troublesome and inconvenient in terms of number planning.

SUMMARY OF THE INVENTION An object of the present invention is to provide a portable calling bell that solves the above problems.

[Means for solving problems]

The portable calling bell of the present invention includes: an antenna for receiving low-power, single-frequency radio waves transmitted by a signal generating means provided at a short distance; and a signal receiving means for identifying a calling signal from the radio waves received by the antenna. and a bell ringing means for ringing a calling bell when the calling signal is identified.

Therefore, when installed in a stationary telephone, it has a signal generation and transmission means that transmits a single frequency radio wave with low power (to the extent that does not violate the Radio Law) from the antenna as a ringing signal when it receives a call. ing. Furthermore, the portable calling bell of the present invention can be used not only in telephones but also in devices that are built-in or additionally connected to such signal generating and transmitting means.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, a telephone 20 connected to a telephone line 10 is
Call signal detection means 21. Signal generation and transmission means 22. and an antenna 23, and the portable calling bell 30 has an antenna 3.
1. Signal receiving means 32. It has a bell ringing means 33 and a loudspeaker 34 serving as a calling bell.

The calling signal detecting means 21 detects that a calling signal is received from the telephone line 10 and notifies the signal generating and transmitting means 22.

The signal generating and transmitting means 22 receives the reception notification of the calling signal, and generates a signal at, for example, 430 MHz with low power (to the extent that it does not violate the Radio Law).
An audible frequency is placed on a carrier wave, generated in accordance with the ringing cycle of the bell, and transmitted via the antenna 23. antenna 2
The signal receiving means 32 receives the radio wave of 430 MHz transmitted from the bell ringer 3 via the antenna 31, receives the radio wave of an audible frequency matching the ringing period, identifies it as a calling signal, and notifies the bell ringing means 33. The bell ringing means 33 is a loudspeaker 3
4 to broadcast an audible discharge signal that matches the ringing cycle of the bell.

Therefore, an incoming call to the telephone 20 causes the portable bell 3o to ring, so that when the telephone 2o answers, a conversation can be immediately made with the caller.

The reason why an audible frequency is placed on the 430 MH2 carrier wave is to form a plurality of identification codes for identification with a calling signal from a nearby telephone. This audio frequency is derived from an oscillator used in the pushbutton dial of a pushbutton telephone. Therefore, in order to be able to assign a large number of identification codes, it is necessary to increase the number of digits depending on the audio frequency or change the carrier frequency.
There are methods such as doubling the number of identification codes, and further forming multiple identification codes on digital data signals.

Next, the main operating procedure will be explained with reference to FIG. 2 and FIG. 1. FIG. 2 is a flowchart showing an example of the main operation procedure of FIG. 1.

First, when the telephone set 20 receives a calling signal from the telephone line #10, it rings a built-in bell, and the ejection signal detection means 21 detects and confirms the ejection signal (operation procedure 1). Upon confirmation of reception of the calling signal, the signal generating and transmitting means 22 oscillates a predetermined frequency to form a transmission radio wave of the calling signal (operation procedure 2), and transmits the formed radio wave from the antenna 23 (operation procedure 3). The transmitted radio waves are so weak that they do not cause radio interference, and the portable calling bell 30 cannot receive them if the caller is far away or if there is a radio barrier.

When the signal receiving means 32 receives a signal radio wave through the antenna 31 of the portable calling bell 30 (operating procedure 4) and identifies the calling signal (operating procedure 5), it drives the bell ringing means 33 to amplify the sound. The bell is made to ring by an audible sound from the device 34 (operation procedure 6). Therefore, the person in possession of the ringing portable calling bell 30 manually stops ringing (not shown), answers using the ringing telephone 20, and starts a conversation (operation procedure 7).

In the above embodiment, the bell ringing means drives the loudspeaker, but the ringing means may be any bell, ringer, or the like. Since it is possible to know when a call has been received from a nearby or remote location, it is not only possible to know when a call has been received to a phone inside the car from outside the car, but also to know when a call has been received from an indoor phone in the garden. The range can be expanded.

Furthermore, a stationary timer or clock has the above-mentioned signal generating and transmitting means, and when notifying the signal generating and transmitting means of the set time, a portable call bell rings. The scope of use can be further expanded by knowing the time to start preparation.

However, it goes without saying that the range of radio waves is limited to the size of a typical home or office premises.

〔Effect of the invention〕

As explained above, according to the portable calling Pell of the present invention,
A ringing signal transmitted by a low-power radio wave from a signal generating and transmitting means installed in the telephone is received at a nearby or distant place, rings a bell, and notifies the holder. Since the caller can respond and interact with the caller, both the calling party and the called party have the advantage of eliminating the need for dialing again.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a flowchart showing an example of the main operation procedure of FIG. 1. 22...Signal generating and transmitting means, 23.31...Antenna, 30...Portable calling ring, 32...Signal receiving means, 33...Bell ringing means, 34...Morning speaker (calling bell). Agent Patent Attorney Hara Uchi Sound field 1 Diagram O I3+'FAF device (to discharge lI/) Fig. 7

Claims (1)

[Claims] An antenna for receiving low-power, single-frequency radio waves transmitted by a signal generating and transmitting means provided at a short distance; a signal receiving means for identifying a calling signal from the radio waves received by the antenna; and when identifying the calling signal. 1. A portable call bell characterized by having a bell ringing means for ringing the call bell.